I just played an excellent game with this assortment:

    Squid Ate FISH squid-rc-8
    HEQS (Heavy Equipment Set) 1.5.2
    Pineapple Trains (10CC)
    Av9.8
    Dutch Town Names
    Industrial Stations Renewal 1.0.1
    Dutch Catenary
    OpenGFX+ Road Vehicles 0.4.0
    Dutch station set
    FIRS Industry Replacement Set 1.3.0
    Dutch Tram Set 2.0.1
    Dutch Road Furniture 0.6.0 - Nederlands Wegmeubilair

But there's many more excellent ones, some which I also always come back to are:

    NUTS
    YETI
    OpenGFX+Landscape
    OpenGFX+Airports
    OpenGFX+Industries
    Swedishrails
    IronHorse
    egrvts
    Total Town Replacement Set (TTRS)
    Swedish Houses